There is no specific code section. California Code is limited to human and livestock damage. However, your dog is considered property under CA law. As a result, you are entitled to reimbursement for damage to your property as a result of the attacking dog's negligence. Actual expenses are consistently awarded.

There are some cases that address this sort of issue.
(Roos v. Loeser, 41 Cal. App. 783 (Cal. App. 1919). , the court decided that the value was limited to the fair market value and related expenses of the dog.